Muscles Of The Back and Upper Extemity

Question 1

Intrinsic muscles

Answer 1

Act on vertebral column, producing it movements and maintaining posture

Question 2

Deep muscles:

Answer 2

Rotatores
Multifidus
Semisphinalis

Question 3

Most oblique orientation
Cross 1-2 segments
Stabilizers

Answer 3

Rotatores

Question 4

Oblique orientation

Cross 2-4 segments

Answer 4

Multifidus

Question 5

Erect orientation

Crosses 4-6 segments

Answer 5

Semiphinalis

Question 6

Extrinsic muscles

Answer 6

Superficial and intermediate muscles, produce and control limb and respiratory movements

Question 7

Intermediate muscles

Answer 7

Illiocostalis
Longisimus
Spinalis

Question 8

Attaches at illiac crest and angles of ribs

Responsible for extension and lateral flexion

Answer 8

Illiocostalis

Question 9

Attachments at illiac crest, posterior rib, mastoid process

Answer 9

Longisimus

Question 10

Attachments at illiac crest, spinous process, cranium

Answer 10

Spinalis

Question 11

Superficial muscles:

Answer 11

Splenius Cervicis

Splenius Capitus

Question 12

Extrinsic Back Muscles

Answer 12

Upper/mid/lower trap 
Levator scapulae
Rhomboid major
Rhomboid minor 
Serratus anterior

Question 13

What are the attachment points of trapezius?

Answer 13

• occiput, EOP, C7-T12

- clavicle, acromion, spine of scapula

Question 14

Attachments of sternocleidomastoid:

Answer 14

Mastoid process
Sternum
Clavicle

Question 15

Attachments of levitator scapula:

Answer 15

Transverse process C1-C4
Medial boarder (superiorly)

Question 16

attachments of serratus anterior:

Answer 16

medial boarder of scapula

ribs 1-7

Question 17

Attachments of Pectoralis Minor

Answer 17

Coracoid process

ribs 3-5

Question 18

Attachments of subclavius

Answer 18

1st rib

inferior surface of the middle third of the clavicle

Question 19

Muscles that make up the shoulder girdle:

Answer 19

supraspinatus
infraspinatus
subscapularis
teres minor

Question 20

Attachments of Supraspinatus

Answer 20

supraspinous fossa

greater tubercle

Question 21

attachments infraspinatus:

Answer 21

infraspinous fossa greater tubercle

Question 22

Attachments of subscapularis:

Answer 22

subscapular fossa

lesser tubercle

Question 23

Attachments of Teres Minor

Answer 23

lateral boarder of the scapula

Greater tubercle

Question 24

Attachments of Pectoralis major

Answer 24

Medial half of clavicle
sternum
costal cartilage
Lateral lip of intertubicular groove

Question 25

Attachments of Biceps Brachii

Answer 25

Long head: Supraglenoid tubercle short head: Coracoid process Common: Tuberosity of the radius

Question 26

attachments of Triceps Brachii

Answer 26

Long Head: Infraglenoid tubercle Short Head: Posterior Humerus Medial Head: Inferior humerus Common: Olecranon Process

Question 27

Attachments of Teres Major:

Answer 27

``` Inferior angle of scapula intertubicular groove (wraps under humerus) ```

Question 28

attachments of Coracobrachialis:

Answer 28

coracoid process Middle third of humerus *deep and medial to biceps*

Question 29

attachments of Brachialis

Answer 29

anterior humerus | coronoid process of the ulna

Question 30

Attachments of Deltiod

Answer 30

Anterior: Clavicle medial: acromion process posterior: scapular spine

Question 31

attachments of Latissimus dorsi

Answer 31

Illiac Crest, Thoralumbasic fascia, SP T6-12 | intertubicular groove of humerus

Question 32

muscles responsible for shoulder Abduction:

Answer 32

supraspinatus | deltoid

Question 33

muscles responsible for External Rotation

Answer 33

Infraspinatus | teres minor

Question 34

Muscles responsable for Internal rotation

Answer 34

Subscapularis Pectoralis Major Teres Major Latissimus Dorsi

Question 35

Muscles responsable for Adduction

Answer 35

Pectoralis Major Terres Major Coracobrachialis Latissimus Dorsi

Question 36

Biceps brachia are responsible for which movements:

Answer 36

Shoulder flexion elbow flexion supination

Question 37

Muscles responsable for Shoulder Flexion:

Answer 37

biceps brachii deltoid coracobrachialis

Question 38

Muscles responsable for elbow Flexion

Answer 38

triceps brachialis Brachioradialis

Question 39

Muscles responsable for shoulder Extension

Answer 39

deltiod | Latissimus Dorsi